Class: KeywordExtractor

Extract keywords from a list of nodes.

Extends

• BaseExtractor

Constructors

new KeywordExtractor()

new KeywordExtractor(options?): KeywordExtractor

Constructor for the KeywordExtractor class.

Parameters

• options?: KeywordExtractArgs

Returns

KeywordExtractor

Throws

If keywords is less than 1.

Overrides

BaseExtractor.constructor

Defined in

packages/llamaindex/src/extractors/MetadataExtractors.ts:48

Properties

disableTemplateRewrite

disableTemplateRewrite: boolean = false

Inherited from

BaseExtractor.disableTemplateRewrite

Defined in

packages/llamaindex/src/extractors/types.ts:12

---

inPlace

inPlace: boolean = true

Inherited from

BaseExtractor.inPlace

Defined in

packages/llamaindex/src/extractors/types.ts:13

---

isTextNodeOnly

isTextNodeOnly: boolean = true

Inherited from

BaseExtractor.isTextNodeOnly

Defined in

packages/llamaindex/src/extractors/types.ts:9

---

keywords

keywords: number = 5

Number of keywords to extract.

Default

5

Defined in

packages/llamaindex/src/extractors/MetadataExtractors.ts:40

---

llm

llm: LLM<object, object>

LLM instance.

Defined in

packages/llamaindex/src/extractors/MetadataExtractors.ts:33

---

metadataMode

metadataMode: MetadataMode = MetadataMode.ALL

Inherited from

BaseExtractor.metadataMode

Defined in

packages/llamaindex/src/extractors/types.ts:11

---

numWorkers

numWorkers: number = 4

Inherited from

BaseExtractor.numWorkers

Defined in

packages/llamaindex/src/extractors/types.ts:14

---

showProgress

showProgress: boolean = true

Inherited from

BaseExtractor.showProgress

Defined in

packages/llamaindex/src/extractors/types.ts:10

Methods

extract()

extract(nodes): Promise<ExtractKeyword[] | object[]>

Parameters

• nodes: BaseNode<Metadata>[]

Nodes to extract keywords from.

Returns

Promise<ExtractKeyword[] | object[]>

Keywords extracted from the nodes.

Overrides

BaseExtractor.extract

Defined in

packages/llamaindex/src/extractors/MetadataExtractors.ts:85

---

extractKeywordsFromNodes()

extractKeywordsFromNodes(node): Promise<object | ExtractKeyword>

Parameters

• node: BaseNode<Metadata>

Node to extract keywords from.

Returns

Promise<object | ExtractKeyword>

Keywords extracted from the node.

Defined in

packages/llamaindex/src/extractors/MetadataExtractors.ts:63

---

processNodes()

processNodes(nodes, excludedEmbedMetadataKeys, excludedLlmMetadataKeys): Promise<BaseNode<Metadata>[]>

Parameters

• nodes: BaseNode<Metadata>[]

Nodes to extract metadata from.

• excludedEmbedMetadataKeys: undefined | string[] = undefined

Metadata keys to exclude from the embedding.

• excludedLlmMetadataKeys: undefined | string[] = undefined

Metadata keys to exclude from the LLM.

Returns

Promise<BaseNode<Metadata>[]>

Metadata extracted from the nodes.

Inherited from

BaseExtractor.processNodes

Defined in

packages/llamaindex/src/extractors/types.ts:33

---

transform()

transform(nodes, options?): Promise<BaseNode<Metadata>[]>

Parameters

• nodes: BaseNode<Metadata>[]

• options?: any

Returns

Promise<BaseNode<Metadata>[]>

Inherited from

BaseExtractor.transform

Defined in

packages/llamaindex/src/extractors/types.ts:18